Friction transmission mechanism.



J. w. LAMBERT. FRICTION TRANSMISSION MECHANISM. APPLIOATION FILED 111m9, 1910. 1, 01 1,449. & Patented Dec. 12,1911.

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6" WITNESSES: i [)VVENTOR.

JohnWLambevE Y 1 BY I A ATTORNEK COLUMBIA PLANOGRAFH CIJ.,WASHXNOTON, u.I.

J. W. LAMBERT. FRICTION TRANSMISSION MEUHANIQM.

APPLIOATION FILED 11111119, 1910.

1,01 1,449. Patented Dec. 12,1911.

2 SHEETS SEEET 2.

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[COLUMBIA PLANOGRAPH 60., WASHINGTON. D. c.

UNITED sT TEsrATE T OFFICE.

JOHN W. LAMBERT, OF ANDERSON, INDIANA, ASSIGNORLTO THE BUCKEYE MANUFAC-TURING COMPANY, OF ANDERSON, INDIANA, A'CORPORATION OF INDIANA.

FRICTION TRANSMISSION MECHANISM.

Specification of Letters Patent.

Patented Dec. 12, 1911.

Application filed June 9, 1910. Serial No. 566,002.

. is a full, clear, and exact description thereof,

reference being had to the accompanying drawings. 1

The object of this invention is to improve certain parts of theconstruction set forth in my former application, Serial No. 564,151,filed May 31, 1910, by way of rendering the construction more compactand suitable for mounting in connection with an ordinary street car andyet obtaining the advantages resulting from the prior construction whichcause the friction members to have suflicient frictional engagement totransmit the desired amount of power to run a street or interurban car.

To that end the engine is located between thegroups of frictiontransmission systems, and said systems are mounted immediately inconnection with the ends of the crank shaft'which extend in eachdirect-ion from the engine. This brings all the parts very closetogether and enables them to be mounted in a single compartmentsuspended beneath the body of a car at ordinary height.

The nature of the invention will be understood from the accompanyingdrawings and the following description and claims.

In the drawings Figure 1 is a plan view of the power generating andtransmitting mechanism and frame on which it is mounted, showing partsby dotted lines in idle position. Fig. 2 is a side elevation of whatappears in Fig. 1, parts being in section on the line 2-2 of Fig. 1.Fig. 3 is a plan view of the'right-hand end of the casing and associatedparts, and a plan view of the engine and the left-hand portion ofthefriction transmission mechanism with the upper part of the casingremoved, parts being shown vby dotted lines. Fig. 4 is a verticaltransverse sect-ion on the line H of Fig. 1.

The wheels, axles and truck of the street car with which this mechanismis peculiarly adapted to be used is not herein shown, but a frame 12is'provided which is adapted to be carried by the truck frame of thestreet car, and it has crossbars 13 which carry another frame consistingof side bars 14 and end bars 15 and which supports the enand gine andcasing 16 which inclose the friction transmission means. The casing 16is double at each end of the device and each end portion is formed oflower and upper halves of similar conformation. Said end portions arebolted to the sides of the gasolene engine 17. The engine extendstransversely of the device and has twocylinders 117 extending from eachside thereof and the crank shaft 20 is indicated by dotted lines in Fig.3, and the ends of the crank shaft ex tend in each direction therefromand their outer ends are mounted in bearings 22 in the ends of thecasing 16. f

At each end of the device, that is, within each chamber of the. casing16, a pair of transversely disposed driving friction wheels 25 arerigidly secured to the driving shaft 20 and located opposite each other,intermediate said driving friction wheels there are longitudinallydisposed friction wheels 26 one on each side of the shaft 20 andindependently mounted upon the inner ends of transversely extending Ishafts 27. The shafts 27 at their outer ends I are mounted inbearings 28in the sides of the casing which permit the lateral movement of theinner ends of the shafts.

The shafts 27 project beyond the casing and c'arry sprocket wheels '29whereby power is transmitted to the'axle of the car. The

inner ends of the shafts 27 are mountedin bearings 30, which are pivotedbetween the flanges 31 of an oscillatory frame 32 loosely astride theshaft 20 but not engaging the same, and left'so as to oscillate.

Its lower ends are connected by a plate 33 from which a support 34extends downwardly, and at its extreme end has a reduced portion 35which fits in a hole in the casing 16,'thus leaving shoulders which restupon the casing 16 and help support the structure therein. The bar 36extends up from the frame 32 through the upper side of the casing 16 andon its upper end has a crank 37 rigidly secured to it. Operation of thecrank 37 causes a rocking or oscillatory movement of the frame 32 fromthe normal position shown in Fig. 1 to theposition'shown in Fig. 2,where. the parts are in position for the car to move forwardly or to theright,-as shown. Two ends of the mechanism are simultaneously operatedwhich moves the arm 37 to the position shown at the right-hand, end ofFig. 3.

That moves one driven wheel 26 into driving engagement with one drivingwheel 25 and the other driven Wheel 26 with the other driving wheel 25.A reverse movement of the arm 37 will place the driven disks in theopposite relation shown in Fig. 3, and cause a reversal of the mechanismor car. In order that the two groups of friction transmission systemsmay be similarly and simultaneously operated, the outer ends of the arms37 are pivoted to a bar l0 which lies upon the casing 16 and on top ofthe engine" and extends to the forward end of the vestibule of the carwhere means are provided for causing the longitudinal movement of saidbar 40.

In order to change the speed of the power transmitting mechanism, thedriven friction wheels 26 are slidably mounted on the shafts 27 but soas to locate the same. The driven friction wheel 26 has a hub 41peripherally grooved to receive a frame 42 which is curved at its upperend and pivoted to the yoked ends of the bar 43, which is secured to avertical rod 44 mounted in the ears 15 outside the frame and extendingup and having secured upon its upper end an arm 46 with a slot 17 in theend thereof which engages the pin L8 in a longitudinal sliding bar 49mounted upon the casing and engine and extending forwardly to thevestibule of the car where means are provided for the longitudinalmovement of said bar 49. The two groups of friction trans mission meansare similarly formed in the respects just mentioned, and hence, amovement of the bar 4:9 to the right from the position shown in Fig. 9will tend to move the driven friction wheels away from the centers ofthe driving friction wheels and thus increase the speed. An oppositemovement will cause the opposite result. The arms 43 and 46 and the rod4-1 are rigid and constitute substantially a bell crank lever.

Thus it is observed that while there are two groups of frictiontransmission systems, each containing two systems of frictiontransmission and adapted to transmit power to four points on the axlesof the driven means, the construction is very compact inasmuch as theengine is located between said groups of said friction transmissionsystems, and the casings inclosing said friction transmission systemsare secured to the sides of the engine. This compactness conservespower, as there is little chance of play of parts or loss of power dueto distant transmission.

I claim as my invention:

1. The combination of an engine with an engine shaft extending inopposite directions therefrom, a casing secured to each side of theengine in which the outer ends of the engine shaft are mounted, andfriction transmission means mounted within said casing and in connectionwith said shaft.

2. The combination of an engine with a shaft extending in oppositedirections therefrom, a casing secured to each side of the engine inwhich the outer ends of the engine shaft are mounted, a pair of drivingfriction wheels secured on each end of said shaft within each chamber ofsaid casing, a pair of independently mounted intermediate drivenfriction wheels one on each side of said shaft, and means for causingall of said friction transmission means to operate as a unit.

3. The combination of an engine with a shaft extending in oppositedirections there from, a casing secured to each side of the engine inwhich the outer ends of the engine shaft are mounted, a pair of drivingfriction wheels secured on each end of said shaft within each chamber ofsaid casing, a pair of independently mounted intermediate drivenfriction wheels one on each side of said shaft, means for transmittingpower from each driven friction wheel, and means for simultaneouslyoperating all of said driven friction wheels so as to move them into orout of frictional engagement with said driving wheels.

4. The combination of an engine with a shaft extending in oppositedirections therefrom, a casing secured to each side of the engine inwhich the outer ends of the engine shaft are mounted, a pair of drivingfriction wheels secured on each end of said shaft within each chamber ofsaid casing, a pair of intermediate driven friction wheels one on eachside of said shaft, a driven shaft on which each friction wheel ismounted at its inner end, means for mounting each driven shaft near itsouter end in said casing so that the inner end of the shaft may havelateral movement, oscillatory means extending vertically through thecasing in which the inner ends of said driven shafts are mounted, andmeans outside the casing for simultaneously oscillating all of saiddriven friction wheels.

5. The combination of an engine with a shaft extending in oppositedirections therefrom, a casing secured to each side of the engine inwhich the outer ends of the engine shaft are mounted, a pair of drivingfriction wheels secured on each end of said shaft within each chamber ofsaid casing, a pair of intermediate driven friction wheels one on eachside of said shaft, a driven shaft on which each friction wheel ismounted at its inner end, means for mounting each driven shaft near itsouter end in said casing so that the inner end of the shaft may havelateral movement, a frame extending vertically in the casing between thedriven wheels and driven shaft and supported by the casing so that thesame may be oscillatory and in which the inner ends of the driven shaftsare loosely mounted, arms secured to saidframe above the casing, and alongitudinal bar pivotally connected to the outer ends of said arms forcausing the operation thereof.

6. The combination of an engine with a shaft extending in oppositedirections there from, a casing secured to each side of the engine inwhich the outer ends of the shaft are mounted, a pair of drivingfriction wheels secured on each end of said shaft within each chamber ofsaid casing, a pair of driven friction Wheels between the drivingfriction wheels with one of said driven wheels on each side of saidshaft, a driven shaft on which each friction Wheel is mounted at itsinner end so as to be slidable thereon and yet turn the same, means formounting each driven shaft near its outer end in said-casing so theinner end thereof may have lateral movement, a frame extendingvertically in the casing between the driven wheels and driven shaft andsupported by the casing so that the same ends of the driven shafts areloosely mounted, arms secured to said frame outside the casing, alongitudinal bar pivotally connected to the outer ends of said arms forcausing the movements of the driven wheels in opposite directions intoor out of engagement with the driving wheels, a bell crank'lever mountedin the casing for each driven friction wheel, means connecting one armof each bell crank lever with each driven friction wheel so as to slidethe same on the shaft, and a longitudinal movable bar pivotallyconnected with the other arms of all the bell crank levers forsimultaneously operating them and moving the driven wheels toward oraway from the centers of the driving Wheels.

In witness whereof, I have hereunto affixed my signature in the presenceof the witnesses herein named.

JOHN W. LAMBERT.

Witnesses:

J EANNETTE ZWICKEL, GRACE MGCONNELL,

7 Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

1 Washington, D. G.

